Quick detachable telescope sight mount



July 5, 1949. R. R. FOSTER QUICK DETACHABLE TELESCOPE SIGHT MOUNT Filed March 2s, 1947 Invent/11' 2 Sheets-Sheet R.R.F0s2er Arm meys July 5, 1949. R. R. FOSTER QUICK'DETACHABLE TELESCOPE SIGHT MQUNT 2 Sheets-Sheet 2 I u vento r R. Ri 052 67 Am rneys radrll'l 1/ I 7 I I Filed March 28, 1947 Patented July 5, 1949 UNITED res " QFFHCE Ralph E. Foster, Livingston, Mont., assignor of one-half, by mesne assignments, to E. T. Lake,

Livingston, Mont.

Application March 28, 1947, Serial No. 737,782

Claims. 1

This invention relates to an improved mount adapted to be applied to and carried by a telescope sight for detachably mounting the sight on the receiver of a firearm, such as a rifle.

A particular object of the present invention is to provide a telescope sight mount by means of which the telescope sight can be mounted on a firearm receiver quickly and easily, without the use of tools and which will retain the telescope in a predetermined position relatively to the barrel of the firearm.

Still a further object of the invention is to provide a telescope sight mount which will eliminate the securing to the firearm of any apparatus for holding the telescope, thereby leaving nothing to interfere with the use of the regular sight of the weapon when the telescope is not applied thereto.

Still a further object of the invention is to provide amounting which will detachably support a telescope on the receiver of a weapon without interference with the normal sights of the weapon and without the necessity of removing the sights therefrom.

Another object of the invention is to provide a mount adapted to be applied to the ejector opening of the receiver and which can be adapted to ejector openings of various weapons with only slight alterations of said openings and which will not interfere with the normal operation of the weapon, either with the telescope and mount applied thereto or removed therefrom.

Various other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawings, illustrating a preferred embodiment thereof, and wherein:

Figure 1 is a side elevational View showing the mounting attached to a conventional telescope sight and in applied position On the receiver of a rifle;

Figure 2 is a top plan view thereof;

Figure 3 is an enlarged longitudinal sectional view taken substantially along a plane as indicated by the line 33 of Figure 2 and illustrating a portion of the receiver of the weapon in section;

Figure 4 is a fragmentary bottom plan View of the mount;

Figure 5 is a cross sectional view thereof taken substantially along a plane as indicated by the line 5-5 of Figure 1, and

Figure 6 is a similar view taken substantially along a plane as indicated by the line B6 of Figure 3.

Referring more specifically to the drawings, for the purpose of illustrating the application and use of the invention, hereinafter to be described, 8 designates generally the receiver portion of a firearm such as a rifle of a conventional type and which is provided with an ejector opening 9 in the top thereof. The numeral 10 designates generally a conventional telescope sight to the barrel of which the telescope sight mount, designated generally II and comprising the invention, is shown applied.

The telescope mount ll includes a pair of foot or base members, each designated generally l2 and each of which includes a base portion l3 having a split collar or sleeve l4 forming an integral upper extension thereof. The collar or sleeve I4 is provided with a lip l5 which projects from one side of the split portion thereof and which is apertured as seen at Hi to receive screw fastenings l! which extend therethrough and into threaded recesses I8 of the base portion I3, all as best illustrated in Figure 5. The sleeve portion Hi of each foot or base member I2 is adapted to engage around a portion of the barrel of the telescope l0 and by tightening the fastenings I! the sleeve or collar portions M are clamped to the telescope barrel for securing the members l2 thereto. The base portions l3 of the two members l2 are disposed in alignment and, as illustrated in Figure 5, each of said portions is provided with a concave under side l9 adapted to fit flush against a portion of the upper side of the receiver 8. Obviously, the shape of the under surfaces 19 could vary to conform to the shape of the upper portion of the receiver of any particular firearm on which the mounting I I is adapted to be applied.

As clearly illustrated, the two foot members I2 are secured to the barrel of the telescope H] in spaced relationship to one another and a pair of collar members, designated generally 20 and 2! are mounted on the telescope barrel between said foot members [2. As best seen in Figure 6, the collar member 20 includes a collar or sleeve portion which is split similar to the portion l4 and which has a lip 22 which is apertured to receive screw fastenings 23 which extend therethrough into threaded recesses 24 of an enlarged base portion 25 of said collar 20. It will be readily apparent that by tightening the fastenings 23 the collar 20 can be tightened into clamping engagement with the barrel of the telescope 10 for frictionally securing it thereto adjacent the foot member I2,

located nearest the rear end of the telescope I0 forwardmost foot member l2 and constitutes the" body portion of the collar 2'!whicli is slid'ably disposed with respect to the telescope. The sleev' 29 is provided with an integral depending stem 30,

which projects radially nitrate-irand' which forms a part of said collar 2|. The stem 30 at its lower or outer end is provided with an extension 3| which projects downwardly and reiwardiy" therefrom and away from the stem 26 andwhich is likewise provided with an outwardly anddownwardly inclined upper edge 32. V

An" elongated sleeve 33 is loosely disposed around the'barrel of the te1esc'ope'manu'nasofie' end thereof engaging" over"'th'e' upper :po'xti'oriof the collar 2E) andwh'ich end'is pro'vid'edwith' a notch Se in the underside thereof to'accciniiiodate' the baseportion' 25 'of the'c'olla'rflfl; Theopp'osite' end 'of' the sleeve 33"'engages over the sleeve 29 of the'collar 2 an'disprovided'with a longitudinal notch 35 for accommodating the stem 30 'ofsa'id collar'2lf I An expansion coiled spring- 3? is dispose'claroun'd the telescope barrel and; -within the" sleeve '33," between the collarunits'20'aiid'2I for urgni'g' said collar'unit 2| outwardlyoi forwardly with'r spect to the collar unit 20 andegainstthe forwardmost foot member I2; asillustrated in' Figjure 4. The sleeve 33 normally moves with the collar unit 2! and may be pressed to fit upon its sleeve 29, if desired;

As best'seen' in Figure '3, the rear'ehdof'th'e ejector opening 9 of'the recivertfis"provided with a notch 33' an'd'said receiver is provided" with an inclined undersurface'aaegtenuing to Ward the inner endbf Saidnotch 31. The opposite, forward end of the ejector opening 9' has a recess 39 formed thereinand' which isshap'ed to receive the tapered forwardeiidof 'th'e" eiiten' sion or lug 3|;

To apply the'tel'esco'pe mount l I to'th'e receiver 8, the stem 26 is'en'gaged in the notch '31 anathesleeve is then manually engage'd'and moved rearwardly of the telescope l8 forretracting the collar unit 2| away fromthe'forward foot member l2 so that the lug'tl thereof can be "petitioned in the forward endof the ejector opening 9. The sleeve 33 is then'perriiitted to mov'e'for'ward for engaging the tapered for'wai'defid of "theme; 39 in the recess 39 and by engage ent'o'f which the'upper surface 32' thereof througuc'am action with the upper surface of the notch orrecess'sa," will cause the mount H to be'dr-awn downwardly until the base portions [Brest onthetop' of the receiver 8. At the sanietime," the lug or e2 tension 2'! of the fixed collar unit 'ztwin be seated in its position of Figure 3 and with its"ulp'idc-i r' surface 28 in substantially fiush"engagement ii the surface 38 of the receiver tdprdviaeacam:

' min-g action for therear portion of the mounting unit I I, so that the telescope fniii'ritin'g'- I l is cammed downwardly neaneachfeh'd thereof 'to insure proper seating of thesuifacs'lewith the upper side of the receiver'fl and's'o "that'the'lori'g'ij tudinal axis of the'telesc'ope' Ill 'wm" b' ccrreeu disposed'with respect to "th'aiiis oi the borcf the firearm, of whichthe receivers fiififisa'pai t. By

manually retracting the sleeve 33, with the collar unit 2| which is secured thereto, against the action of the spring 36 in a direction from left to right of Figures 1 to 3, the lug or extension 3| will be disengaged from the notch 39 so that the telescope mount ll may be rocked upwardly at its forward end and dis'ngaged frorfr the receiver 8; thus enabling the mounfltobe' applied to or removed from said receiver 8 without the use of any tools. Further, the telescope l0 when supported-by the mount ll will not interfere with the normal sight of the weapon or with the normal operation thereof, including ejection of the cartri'd'ge'c'a'ses throughthe opening 9. When the sight and mount are removed, the weapon of which the receiver forms a part may be utilized in a" conventional'manner and with a conventional sight and there will be no projections or protruding elements thereon as is conventionally required in afiordin a" means for mounting a ei pe i h ,7

g It will also be readily apparent that the"mo ur'it i 'I can be adapted to ejector openings of receivers of various rifles and other'fireari nsbyprovidirig notches or recesses in the ends thereof foif'rceptionof thelugsfi'l and3l an'd'that the'distance b'etweensaid lugs, when in an applied position on a receiver, may'obviously be"var'ied by the" adjustabili'ty afforded by the spring 3Sa'i'id springs of different lengths may be 'employ'edif required:

Various other modifications and changes are likewise 1 contemplated and" may obviously be sortedto, without departing from thefspi scope of the invention "as" hereinafter defined by the'appendedclaims. I a

I claim as m'y'invenuen's 1. In a mount for teiestope sights for are a lug 'fix'edly secured to the'barrel'of a' telescope sight and projecting substantially radiauyuiere: from, a second lugsli'dably disp'osed'oiisaid'sight barrel and projecting substantiall'yradially t ere: from, said lugs having" substantially" laterally ex tending projections at their outer ends'anapra jecting therefrom in directions away from one another and'adapted ror detachablyengaging T the ends of the ejecto'r'opening of a firearni' re ceiver,' spring means interposed betweefis'ai'd' lugs for urging'the'slidably mountdlug away from the 'fiXe'd lug for 'yieldably anddetacliably; retaining'said'lug extensions in" engagement with the ends of the ejector opening" roi'meuntmg he telescope on therece iverI-and" a" sleeve 'slidably disposed on the sight barrel and substantially enclosing said spring" means, said sleeve eing connected to and movable" with said slid'abl'y' mounted lug and being movable'r'e'l'ativelyto the fixdiug v I r 2. In 'a mount for telescope sights for seems; a lugfi'xedly secured to the'barielofa telescope sight and projectingsubstantially radially there-- from, a secondlug 'slidably" disposed on said sight barrel and projecting substantiallyradially'therefrom, said lugs having substant'ial 1ylaterallyeik tending projections at their "outer ends and pro je'c't'ingtl'ierefrom in" directions away from one another and adapted for detachably-engagirigdn the ends of the ejector opening of a firearm re ceiver, spring" means interposed between said-lugs for urging the slidably'mount'ed-lug awaydr'orri the fixed lug for yieldably and detacl'ialoly"re'tai'rr ing said lug extensions in- "engagement with the oi? the ejector opening ro'r mounting-the telescope on the receiver, and foot members-: edly' "secured 'tothe" sight bairlgsaid foot hating portions constructed antafi'in'ged td fit flush against portions of the receiver when the lugs are in engagement with the ends of the ejector opening for combining with said lugs to detachably maintain the telescope sight in a predetermined position relatively to the receiver.

3. In a mount for telescope sights for firearms, a lug fixedly secured to the barrel of a telescope sight and projecting substantially radially therefrom, a second lug sildably disposed on said sight barrel and projecting substantially radially therefrom, said lugs having substantially laterally extending projections at their outer ends and projecting therefrom in directions away from one another and adapted for detachably engaging in the ends of the ejector opening of a firearm receiver, spring means interposed between said lugs for urging the slidably mounted lug away from the fixed lug for yieldably and detachably retaining said lug extensions in engagement with the ends of the ejector opening for mounting the telescope on th receiver, a split collar forming an integral part of said fixed lug and having means for detachably clamping the collar to the sight barrel, and a sleeve forming a part of said slidably mounted lug and slldably disposed on said barrel.

4. In combination with an ejector opening of a firearm receiver, said receiver being provided with recesses opening into the ends of the ejector opening, a telescope mount comprising a lug fixedly secured to the barrel of a telescope sight for engagement with one of said recesses, a second lug slidably disposed on the sight barrel, spring means interposed between said lugs for urging the slidable lug in a direction away from the fixed lug and into engagement with the other of said recesses for detachably mounting the telescope sight on the receiver, foot members fixed to the sight barrel and having base portions constructed and arranged to engage flush against external portions of the receiver when said lugs are in engagement with the recesses.

5. In combination with an ejector opening of a firearm receiver, said receiver being provided with recesses opening into the ends of the ejector opening, a telescope mount comprising a lug fixediy secured to the barrel of a telescope sight for engagement with one of said recesses, a second lug slidably disposed on the sight barrel, spring means interposed between said lugs for urging the slidable lug in a direction away from the fixed lug and into engagement with the other of said recesses for detachably mounting the telescope sight on the receiver, foot members fixed to the sight barrel and having base portions constructed and arranged to engage flush against external portions of the receiver when said lugs are in engagement with the recesses, and said lugs and the recesses engaged thereby having coacting cam surfaces for urging the telescope mount inwardly of the receiver for cooperation with said foot members for yieldably retaining the telescope sight in a predetermined position relatively to said receiver.

RALPH R. FOSTER.

REFERENCES CITED The following referenlces are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 210,523 Hackett Dec. 3, 1878 733,681 Schouboe July 14, 1903 1,905,070 Steinle Apr. 25, 1933 2,452,145 Pike Oct. 26, 1943 FOREIGN PATENTS Number Country Date 428,784 Germany Aug. 9, 1924 Certificate of Correction Patent N 0. 2,475,383

July 5, 1949 RALPH R. FOSTER It is hereby certified that errors appear in the above numbered patent requiring correction as follows:

In the grant, lines 1 to 3, for assignor of one-half, by mesne assignments, to E. T. Lake, of Livingston, Montana, read assignor, by direct and mesne assignments, of one-half to Robert R. Hardgrone and one-half to E. T. Lake, both of Livingston, Montana, line 13, for Ralph R. Foster and E. T. Lake, their heirs read Robert R. Hardgrove and E. T. Lake, their heirs; in the heading to the printed specification, lines 4 to 6 inclusive, for assignor of one-half by mesne assignments, to E? T. Lake, Livingston, Mon read assignor, by direct and mesne assignments, of one-half to Robert R. Hardgrove and one-half to E. T. Lake, both of Livingston, Mont. as shown by the record of assignments in this Office;

and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 13th day of December, A. D. 1949.

THOMAS F. MURPHY,

Assistant Uommissz'oner of Patents.

Qertificate of Correction Patent No. 2,475,383 July 5, 1949 RALPH R. FOSTER It is hereby certified that errors appear in the above numbered patent requiring correction as follows:

In the grant, lines 1 to 3, for assignor of one-half, by mesne assignments, to E. T. Lake, of Livingston, Montana, read assignor, by direct and mesne assignments, of one-half to Robert R. Hardgrove and one-half to E. T. Lake, both of Livingston, Montana, line 13, for Ralph R. Foster and E. T. Lake, their heirs read Robert R. Hardgrove and E. T. Lake, their heirs; in the heading to the printed specification, lines 4 to 6 inclusive, for assignor of one-half by mesne assignments, to E. T. Lake, Livingston, Mont. read assignor, by direct and mesne assignments, of one-half to Robert R. Hardgrove and one-half to E. T. Lake, both of Livingston, Mont. as shown by the record of assignments in this Office; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 13th day of December, A. D. 1949.

THOMAS F. MURPHY,

Assistant Oommz'ssimzer of Patents. 

